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Exception handling - division by zero (0)

4 replies on 1 page. Most recent reply: Apr 15, 2005 11:05 AM by paul

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paul

Posts: 7
Nickname: larkinp317
Registered: Mar, 2005

Exception handling - division by zero (0)

Posted: Mar 29, 2005 11:24 AM

Hi I am new to Java and am strugling to complete a script. The script is a basic calculations script that asks the user what type of calculation they want to perform (+-/*). All works so far but I need to make sure that the program pick up when a user is trying to divide by zero. At present I get an 'Infinity' answer. I know I need to use some form of 'try and catch' code but just cannot seam to get it right.

Any help would be appreciated

Thanks

larkinp317

Matthias Neumair

Posts: 660
Nickname: neumi
Registered: Sep, 2003

Re: Exception handling - division by zero (0)

Posted: Mar 29, 2005 10:07 PM

try {
...
} catch (java.lang.ArithmeticException exc) {
}

But this will only be usefu if you want to do the exception handling after the operation.

I would suggest you prevent the division by zero by checking the operators before you execute the operation.

paul

Posts: 7
Nickname: larkinp317
Registered: Mar, 2005

Re: Exception handling - division by zero (0)

Posted: Mar 30, 2005 6:06 AM

Thanks for the tip.

I think you may guess what my next question is, How do you prevent the 'divide by zero'

Thanks

Matthias Neumair

Posts: 660
Nickname: neumi
Registered: Sep, 2003

Re: Exception handling - division by zero (0)

Posted: Mar 30, 2005 9:55 PM

Check if the valuie is 0 before executing the operation.

paul

Posts: 7
Nickname: larkinp317
Registered: Mar, 2005

Re: Exception handling - division by zero (0)

Posted: Apr 15, 2005 11:05 AM

cheers guys, all sorted.

Thanks for the tips

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